Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 175mm stroke, G1/2 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ125 mm
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 33 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder is built for heavy-duty actuation without external tie rods. Its extruded hard-anodized aluminum body is notably shorter and more compact than a same-bore ISO 15552 unit, saving valuable machine space. The G1/2 port feeds a robust 32 mm piston rod threaded M27x2.0.
The external adjuster allows you to shorten the extend stroke on-site by up to 10 mm, giving a usable range of 165-175 mm while the retract end remains fixed. This lets you fine-tune the end position without swapping the cylinder. It handles about 3682 N of real work safely, which translates to lifting roughly 313 kg vertically. Note that this non-magnetic SKU cannot take a sensor; you would need the -S variant for CMSE/DMSE switches.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 33 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×175 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10 Is Used
Heavy Pallet Positioning
Shifts loaded pallets with precision, using the 10 mm extend adjustment to dial in the exact stopping distance against a hard mechanical stop.
Press Clamping Fixture
Provides immense clamping thrust, allowing operators to fine-tune the 165-175 mm extend position on-site to accommodate varying material thicknesses.
Stamping Press Feed
Pushes heavy billets into a stamping press, where the compact JIS profile saves floor space and the external adjuster sets the feed depth accurately.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10 the Right Cylinder?
When sizing this model against its neighbors, a 100 mm bore yields 3927 N push at 0.5 MPa, while stepping up to this 125 mm bore provides 6136 N. The 125 mm sits at the top edge of the range, offering a massive 1251 kgf maximum at 1.0 MPa. The 10 mm adjustable window is highly useful for matching multiple shared spares across slightly different stroke variants or dialing in final end positions on-site. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because this is a non-magnet version, position sensing is unavailable. For any stroke at or above 300 mm, always guide the load to prevent side-load damage to the rod seals.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-10 FAQ
At 0.5 MPa it pushes 6136 N and pulls 5734 N. At 0.7 MPa the push is 8590 N and pull is 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa. It uses a G1/2 port, a 32 mm rod with an M27x2.0 thread, and features 33 mm adjustable air cushions at both ends.
The -10 code means an external stop screw lets you shorten the extend stroke by up to 10 mm on-site, giving a usable extend range of 165-175 mm; the nominal 175 mm is the maximum, and the retract end is fixed. This mechanism only sets the end position and does not lock the load. If air pressure drops, the piston will drift; use an external rod lock or pilot-operated check valve for load holding.
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